A NASA astronaut is being held without bail after police say she attacked her rival for another astronaut's attention at Orlando International Airport Monday.

Lisa Marie Nowak drove more than 12 hours from Texas to meet the 1 a.m. flight of a younger woman who had also been seeing the astronaut Nowak pined for, according to Orlando police.

Nowak -- who was a mission specialist on a Discovery launch last summer -- was wearing a trench coat and wig and had a knife, BB pistol, and latex gloves in her car, reports show. They also found diapers, which Nowak said she used so she wouldn't have to stop on the 1,000-mile drive.